We divide 19640964 by 686
Our goal is to divide 19640964 by 686.

Advancing to step 1:
If we divide 1 by 686, we get 0 and a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Append the next digit (9) from the dividend to 1 and continue with: 19 / 686

Going ahead to step 2:
If we divide 19 by 686, we get 0 and a remainder of 19.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 19 after subtracting 0 from 19.
Fetch the next digit (6) from the dividend, attach it to 19 and continue: 196 / 686

Going ahead to step 3:
The number 686 fits into 196 0 times, leaving a remainder of 196.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 196, we get 196.
Grab the next digit (4) from the dividend, add it to 196, then carry on: 1964 / 686

Let's proceed to step 4:
The number 686 fits into 1964 2 times, leaving a remainder of 592.
Use 2 as the next digit of our solution. 
Result so far: 2.0
Subtract 1372 from 1964 to get 592.
Bring next digit (0) of the dividend behind the 592 and repeat the process: 5920 / 686

Going ahead to step 5:
When dividing 5920 by 686, we get 8 with a remainder of 432.
Use 8 as the next digit of our solution. 
Result so far: 28.0
If we subtract 5488 from 5920, we get 432.
Take the next digit (9) from the dividend and append it to 432, then repeat: 4329 / 686

Advancing to step 6:
The number 686 fits into 4329 6 times, leaving a remainder of 213.
The next digit of our result is 6. 
Result so far: 286.0
Deduct 4116 from 4329 and we're left with 213.
Bring next digit (6) of the dividend behind the 213 and repeat the process: 2136 / 686

Let's proceed to step 7:
2136 divided by 686 is 3 with a remainder of 78.
Use 3 as the next digit of our solution. 
Result so far: 2863.0
If we take 2058 away from 2136, we end up with 78.
Fetch the next digit (4) from the dividend, attach it to 78 and continue: 784 / 686

On to step 8:
686 goes into 784 1 times with a remainder of 98.
Use 1 as the next digit of our solution. 
Result so far: 28631.0
Subtracting 686 from 784 leaves us with 98.
Since there are no more digits in the dividend, we add a zero to the remainder making it 980, and continue the process.

Advancing to step 9:
The number 686 fits into 980 1 times, leaving a remainder of 294.
Write down 1 as next digit of the result. 
Result so far: 28631.1
If we take 686 away from 980, we end up with 294.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2940, and continue the process.

Going ahead to step 10:
If we divide 2940 by 686, we get 4 and a remainder of 196.
Use 4 as the next digit of our solution. 
Result so far: 28631.14
If we take 2744 away from 2940, we end up with 196.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1960, and continue the process.

Let's proceed to step 11:
When dividing 1960 by 686, we get 2 with a remainder of 588.
The number 2 becomes the next digit in our result. 
Result so far: 28631.142
The remainder is 588 after subtracting 1372 from 1960.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5880, and continue the process.

On to step 12:
When dividing 5880 by 686, we get 8 with a remainder of 392.
Record the quotient 8 as the next digit in the result. 
Result so far: 28631.1428
If we subtract 5488 from 5880, we get 392.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3920, and continue the process.

Moving on to step 13:
If we divide 3920 by 686, we get 5 and a remainder of 490.
Write down 5 as next digit of the result. 
Result so far: 28631.14285
Subtracting 3430 from 3920 leaves us with 490.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4900, and continue the process.

On to step 14:
686 can be fit into 4900 7 times, resulting in a remainder of 98.
Record the quotient 7 as the next digit in the result. 
Result so far: 28631.142857
Subtract 4802 from 4900 to get 98.
Since there are no more digits in the dividend, we add a zero to the remainder making it 980, and continue the process.

Let's proceed to step 15:
When dividing 980 by 686, we get 1 with a remainder of 294.
Record the quotient 1 as the next digit in the result. 
Result so far: 28631.1428571
If we subtract 686 from 980, we get 294.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2940, and continue the process.

Moving on to step 16:
686 can be fit into 2940 4 times, resulting in a remainder of 196.
Use 4 as the next digit of our solution. 
Result so far: 28631.14285714
Subtracting 2744 from 2940 leaves us with 196.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1960, and continue the process.

After the division, we end up with 28631.14285714 and a remainder of 1.96e-07.